As the pcm1794 has a high output impedance i thought about using the 2sk170/2sj74 pair in the input. I have bought 4 matched pairs from Spencer Cheung, they are not cheap, it cost the equivalent of 1 Kilo gram of BC327 . but i am very curious to try them, and this project seems to be perfect for them. So there it is, the version that I going to build.
I have found an elegant soluction to connect the dc servo, instead of connecting the servo at the input as usual, the servo will be connected to the input of current sources, any noise that the servo generate will be filtered by C2 and C3 (I have already test this, and work very well). So this I/V converter will not have output capacitor.
In the schema is absent the ccs of 6,2ma for balance the pcm1794 dc_offset.

I will do also a version with BC327/337 transistors in the input. And i am working in a I/V for the ESS9018 .

I have more faith in the BJT version.. I have made phono-stages with Jfets, they always sound nice, but also wailed and cloudy compared to the Bjt's

Like your Servo- very much, the same way I designed one in for the paradise phonostage--there we use the OPA134.
I would make a jfet current source instead of the two resistors setting the current. and then insert the servo with two 100 kohm resistors on each side of the CCS.
I would then use the 6.2mA countercurrent to trim the offset to 0 before engaging the servo.
Then you know the servo is just dealing with thermal drift.

MiiB I will do also a bipolar version, that i will post tomorrow, just need to do some final tests tonight. I want to try something with this jfet. And i realy think the jfet version will be very good.

The current source use in this schema is very good and generate very low noise, no need for improvements.